The definitive diagnosis of leukemia is made by:
bone marrow aspiration with biopsy.
CT scan.
complete blood count.
lumbar puncture with cerebral spinal fluid analysis.
The Correct Answer is A
Rationale:
A. Bone marrow aspiration with biopsy is the definitive method for diagnosing leukemia. It allows direct examination of marrow cellularity, morphology, and the presence of leukemic blasts, confirming the diagnosis.
B. CT scans may detect organ involvement or complications but cannot diagnose leukemia.
C. A complete blood count (CBC) can suggest leukemia through abnormal white blood cell counts, anemia, or thrombocytopenia but cannot confirm the diagnosis.
D. Lumbar puncture with cerebrospinal fluid analysis is used to assess CNS involvement in leukemia but is not sufficient for initial diagnosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Rationale:
A. Cetirizine (Zyrtec) is a second-generation antihistamine considered safe for use in pregnancy, particularly after the first trimester.
B. Diphenhydramine (Benadryl) is a first-generation antihistamine generally regarded as safe in pregnancy.
C. Loratadine (Claritin) is also considered safe during pregnancy and commonly used for allergic rhinitis.
D. Pseudoephedrine (Sudafed) is a decongestant that should be avoided, especially in the first trimester, because it can reduce uteroplacental blood flow and has been associated with a small risk of congenital malformations.
Correct Answer is B
Explanation
Rationale:
A. By age 2, most children are typically able to perform gross motor skills such as kicking a ball.
B. Inability to kick a ball at this age may suggest a gross motor developmental delay. This finding warrants further assessment of overall motor development and may indicate the need for early intervention services.
C. While motor delays can be associated with autism, inability to kick a ball alone is not a specific sign of autism spectrum disorder.
D. Vision problems may affect coordination, but gross motor delays like difficulty kicking are more directly linked to neuromuscular or developmental issues.
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